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` WASTE DISCHARGE REQUIREMENTS ORDER NO. ALPINE PACKING COMPANY,INC, ' WASTEWATER TREATMENT SYSTEM, SAN JOAQUIN COUNTY 2 Product Name Stren h Ch emical Dura Foam 5-15% Potassium Hydroxide Kick No. 301 5% Sodium Dichloroisocyanurate Trolley Wash No. 245 80% Sodium Hydroxide WASTEWATER SYSTEM 9. Wastewater is collected in floor drains within the facility. Some solids are removed by the floor drain screens. From the floor drains, wastewater is discharged to one of two sumps, and is then piped to Pond No. 1. A rendering company regularly removes solids that settle in the sumps and solids removed from floor drains. 10. The wastewater treatment system consists of two sumps, four unlined wastewater ponds (without aeration), a pumping station, and a 14 acre land application area. The ponds are estimated to be approximately 10 to 14 feet deep. 11. Wastewater flows between ponds at levels that are set by pipes installed in the berms. This results in minimal fluctuation of wastewater levels. Therefore the ponds provide only a small amount of storage capacity. 12. The Discharger has collected limited wastewater samples in accordance with its Monitoring and Reporting Program. Treated wastewater samples were collected from the wastewater pond prior to discharge to the land application area. The average wastewater quality for samples collected from 1 January 2001 to 28 January 2002 is presented in the table below. Anal e Units Concentration Total Kjeldahl Nitrogen mg/1 26 Nitrate as N mg/l ND Total Dissolved Solids mg/1 1235 PH Std. 7.7 13. The flow rate of wastewater discharged to the land application area was measured after repair of a wastewater flow rate meter in January 2001. For the last year, flow rates have averaged approximately 34,600 gallons per day(gpd). Flow rates varied from no discharge to approximately 203,000 gpd; however, discharges that occurred on Saturday, Sunday, or holidays were added to the flow on Monday. However, the Discharger does not currently meter the volume of wastewater entering the ponds. Therefore, the Discharger is now required to record the wastewater flow rate whenever wastewater is discharged and to install a meter to record the volume of wastewater discharged into the ponds. 14. The Discharger submitted calculations and a water balance; however, it did not evaluate storage requirements for seasonal conditions when wastewater could not be applied to land. Estimating a wastewater flow rate into the ponds of approximately 750,000 gallons per month (25,000 gpd),. storage of wastewater will likely be required for the months of December, January, and February. The Discharger's RWD identified approximately 1,538,000 gallons of total pond storage CAPrCi=HesLShcsWl ine Packing%WDR.doc